I have found as an Austin Healey 3000 with Fiberfab body th source says from 1962.
Its specifications.
Serie No: HBT7L16774, Engine No: 29 ERUH 323, Motor specifications: 6 cylinder in-line with 3 carburators S.U. HS4 38mm, Engine power 152 HP @ 4750 R/Min - 30m.KG @ 3 000 R/Min, Ratio: 83,36mm x 88,90 mm, Cylinder: 2.912 cm³, 4 speed gear box with overdrive in 3th and 4th gear, Hydrolic Girling brakes in front and basket brakes in the rear.